Carl J Green

US Patent:

6785926, Sep 7, 2004

Filed:

May 9, 2002

Appl. No.:

10/140723

Inventors:

Carl Green - San Carlos CA 94070

International Classification:

A46B 1302

US Classification:

15 221, 15 224, 403373

Abstract:

A mechanically-driven toothbrush consists of a handle, which contains a driving motor with a conversion mechanism, and a toothbrush attachment removably connectable to the output shaft of the conversion mechanism. The handle with the conversion mechanism and the drive motor may comprise a standard, commercially produced unit with the output end of the conversion mechanism performing alternating rotary movements. The toothbrush attachment is made in the form of a conventional toothbrush head without any angular transmission. The tail of the head is connected with the output end of the conversion mechanism by a coupling, which has a locking element for engagement with an appropriate connection element on the output end of the conversion mechanism. The connection portion is covered by a protective sleeve that can be removably connected to the front end of the handle. In operation, the user moves the toothbrush up and down in the vertical directions of the teeth.